smuggler@abv.bg,Feed Additives - Vemo 99
06-04-2017

The Effect of Applying Herbal Extracts on The Performance of Starter and Grower Pigs


The abundance of unique herbs in our country provides for the opportunity to manufacture feed additives, applicable in livestock breeding, which can successfully substitute for the already banned antibiotics, used for many years as growth stimulants.


The aim of this research is to determine the effect on productivity of pigs, when supplemented with the biologically active herbal feed additive VemoHerb BP to compound feed.
The series VemoHerb is a feed additives produced by “Vemo 99” Ltd., Sofia, Bulgaria and is a mixture of biologically active natural compounds.


The product contains saponins, sterols, flavonoids, tannins, polyphenols and others and has been tested in a series of experiments in starter and grower pigs. The trials with pigs have been conducted in the Experimental site of the Institute of Stock-Breeding Sciences, Konstinbrod, Bulgaria.


Results and Discussion
In the trials with starter pigs have been used a total of 30 pigs from the breed ‘Dunavska byala’. The piglets were included in the trial immediately after transferring to self-feeding. Three groups were formed, including ten piglets each – 5 castrated males and 5 females (3x5x2).


The first is control group and the animals received compound feed without added growth stimulant. For the second group feed formula is enriched with nutritional antibiotic and a third group is with a test product VemoHerb BP in the amount of 15 g/t feed. The obtained results are shown in the following table:

Groups

Parameters


Control


Control + antibiotic


Control + VemoHerb BP

Total number of pigs

10

10

10

Period, days

60

60

60

Body weight, kg
- at the beginning
- at the end

 

7.19±0.89
17.68±1.73

 

7.16±0.54
18.61±0.65

 

7.30±0.53
20.9±0.92

Growth, g/day
- % compared to Control

175±21.5a*
100.0

191±7c
109.1

226±8.2ac
129.1

Feed intake:
Intake/day/g
- % compared to Control
- for 1 kg gain, kg
- % compared to Control

 

523
100.0
2.99±0.6c
100.0

 

496
94.8
2.599±0.06b
86.9

 

543
103.8
2.398±0.1bc
80.2

The value marks of the same letters are significant at: a, b – P < 0.05; c – P < 0.01.

Taking a look at the trial results we can conclude that comparing the Control Group with the group supplemented with antibiotic, the starter pigs that have not received the growth stimulant are significantly lagging behind in their development. Their actual values of growth intensity, determined by the average daily gain are 175 g/day and 191 g/day, for the Control and Control + antibiotic respectively, or the growth difference is 9.1%. The low growth rate in the Control Group is directly connected with the low nutrient absorption from the feed. The feed intake per 1 kg gain (FCR) is 2.99 and 2.599 kg respectively, or 13.1% higher compared to Control + antibiotic.

The experimental data shows what would be the lost in pig breeding after the prohibition of nutritive antibiotics in case that have not found alternative solutions.
By the replacement of the nutritive antibiotic with VemoHerb was found reliably increase in average daily gain compared with the first and second group. The experimental data shows that the starter pigs supplemented with VemoHerb BP have 29.1% higher growth intensity, compared to the Control group (P < 0.05), and 18.3% increased growth, compared to the group supplemented with antibiotic (P < 0.01).  Analogical results are observed in the FCR values – better feed utilization with 20% and 8%, compared to the Control group (P < 0.01) and the Control + antibiotic group (P < 0.05).


At the end of the experiment with starter pigs, they were divided into separate grower groups and their live weight was between 20 and 50 kg. In the results from the grower pigs experiment, shown in table below, we observe a tendency for growth and feed utilization.

Groups

Parameters

Control

Control + Flavomycin

Control + VemoHerb BP

Total number of pigs

6

6

6

Period, days

57

57

57

Body weight, kg
- at the beginning
- at the end

 

18.28±0.54
43.6±2.99

 

18.94±0.93
46.32±3.65

 

20.73±1.13
50.67±1.4

Growth
- g/day
- %compared to Control

 

444±47.1
100.0

 

480±52.4
108.1
100.0

 

525±16.03
118.24
109.38

Feed intake:
- for 1 kg gain, kg
- %compared to Control

 

3.68±0.51а
100.0

 

3.40±0.34
92.4

 

3.006±0.07а
81.7

The value marks of the same letters are significant at: a – P < 0.05.

The absolute values for the average daily gain are 444, 480, and 525 g/day, respectively for the three groups. The group supplemented with VemoHerb BP has higher growth intensity compared to the Control and Control + antibiotic groups, by 18% and 9%, respectively.


Similar results are observed with the FCR values. The pigs supplemented with nutrition antibiotic show better feed utilization with 8%, compared to the Control (P < 0.05), while the group supplemented with VemoHerb BP has better feed utilization with 18%, compared to the Control (P < 0.05).

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